Function verify_file

tools/configure.c:523–553

}

static bool verify_file(const char *path)
{
  struct stat buf;

  if (stat(path, &buf) < 0)
    {
      /* It may be okay if the file does not exist */

      int errcode = errno;
      if (errcode == ENOENT)
        {
          debug("verify_file: stat of %s failed: %s\n",
                path, strerror(errno));
          return false;
        }
      else
        {
          fprintf(stderr, "ERROR: stat of %s failed: %s\n",
                  path, strerror(errno));
          exit(EXIT_FAILURE);
        }
    }

  if (!S_ISREG(buf.st_mode))
    {
      fprintf(stderr, "ERROR: %s exists but is not a regular file\n", path);
      exit(EXIT_FAILURE);
    }

  return true;
}

static void find_topdir(void)
{